Danilo Mandic at Imperial College in London has developed an EEG device that can be worn inside the ear, like a hearing aid. It will enable scientists to record EEGs for several days at a time, allowing doctors to monitor patients who have recurring problems such as seizures or microsleep.
By nestling the EEG inside the ear, a lot of signal noise usually introduced by body movement is avoided. The engineers can also ensure that the electrodes are always placed in exactly the same spot to make repeated readings more reliable.
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